TeamstersCare Data Breach Affects PII & PHI of over 21,000

Published

September 4, 2025

Updated

September 5, 2025

TeamstersCare Data Breach Affects PII & PHI of over 21,000

Teamsters Union 25

Types of INFORMATION affected

Names
Social Security Numbers
Dates of Birth
Addresses
Government IDs
Medical Info
Financial Info

On Aug. 1, 2025, Teamsters Union 25 Health Services & Insurance Plan (TeamstersCare) identified suspicious activity within its network. An investigation determined that an unauthorized actor accessed and possibly copied certain files containing personal data. The breach impacted data associated not only with TeamstersCare but also with the Teamsters Local 25 Investment Plan.

A review was completed on Aug. 18, 2025 and it was discovered that the data breach compromised both personally identifiable information (PII) and protected health information (PHI). Exposed information includes names, Social Security numbers, member IDs, health insurance information and medical information.

The cybersecurity incident impacted several thousand individuals, including 19,935 Massachusetts residents, 1,521 in New Hampshire and 13 in Maine. TeamstersCare began notifying affected individuals by mail on Sept. 3, 2025 and published a data incident notice on its website.

The data breach was also disclosed to the Maine, Massachusetts, New Hampshire and Vermont Attorney Generals' offices on Sept. 3, 2025 and Sept. 4, 2025.

Teamsters Union 25 Health Services & Insurance Plan's response

TeamstersCare responded to the breach by isolating affected systems and securing its network. The organization is also offering impacted individuals free TransUnion Cyberscout single-bureau credit monitoring and identity protection services.

If you receive a data breach letter from TeamstersCare or the Teamsters Local 25 Investment Plan, you may want to:

Sign up for the free credit monitoring and identity protection services.
Monitor your credit reports and financial accounts for any unusual activity.
Be alert for phishing emails or phone calls that may use your exposed information.
Consider placing a fraud alert or credit freeze with major credit bureaus.

For more information about TeamstersCare and its services, visit the TeamstersCare website.

Protect Your Data

A breach notice means your personal details could be circulating far beyond the organization involved. One practical step is continuous monitoring: services such as Identity Defender (included with an ExpressVPN subscription) can automatically check dark-web markets, flag new credit-file activity, and request removal of your information from data-broker sites.

This kind of “early-warning system” can’t undo a breach, but it can help you spot misuse quickly and limit further exposure. ExpressVPN is offering 61% off, risk-free for 30 days, with ID Theft Insurance included and no extra cost for those who sign up for one or two years.